#define STIFF_STEP kaps_rentrop
#define STIFF_NAME "Kaps-Rentrop"

#define GAM REAL(0.231)
#define A21 REAL(2.0)
#define A31 REAL(4.52470820736)
#define A32 REAL(4.16352878860)
#define C21 REAL(-5.07167533877) 
#define C31 REAL(6.02015272865)
#define C32 REAL(0.159750684673) 
#define C41 REAL(-1.856343618677) 
#define C42 REAL(-8.50538085819)
#define C43 REAL(-2.08407513602)
#define B1 REAL(3.95750374663)
#define B2 REAL(4.62489238836)
#define B3 REAL(0.617477263873) 
#define B4 REAL(1.282612945268)
#define E1 REAL(-2.30215540292)
#define E2 REAL(-3.07363448539)
#define E3 REAL(0.873280801802)
#define E4 REAL(1.282612945268)
#define C1X GAM
#define C2X REAL(-0.396296677520e-01) 
#define C3X REAL(0.550778939579)
#define C4X REAL(-0.553509845700e-01) 
#define A2X REAL(0.462)
#define A3X REAL(0.880208333333)
